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[csartoo]

Hi,

I start to be desperate after reading many posts. I explain my problem:
I have owned for a little more than 3 years I believe a NAS Dlink 320LW with a single disk formatted as "standard" and my brother-in-law has the same.
We were doing cross-backup from NAS to NAS and one day the two started flashing (only the power LED). No access to NAS on the network and on the web.
I removed the drive from the NAS, plugged into my Mac USB and installed ubuntu in VirtualBox. In the disk utility I see a USB disk but this one has an unknown type of patition and impossible to mount it. Same if I put the drive in a PC under Ubuntu.
It's the same with the other NAS disk of my brother-in-law.
I am afraid that my data will be irrecoverable and I plan to go through a professional company very expensive.
Are "standard" disks normally readable in Linux? So it's possible that the disks are not functional and not the NAS?
Thanks in advance for your help and sorry for the approximate translation, I use Google Translate.

[FurryNutz]

The format for DNS drives is EXT3. Make sure your OS has the drivers supported for this type of format.

What is the Mfr and model if the drives installed?

Please review this:
http://forums.dlink.com/index.php?topic=50772.0

[csartoo]

Hello,
My drive is a Seagate Barracuda 3000GB. With a live CD Linux in Mac OS X the disk connected USB is well detected but with a size of 802GB.
And instead of seeing Ext3 or Ext4 ... there are marked unknown
No action possible

I tried with FUSE for MAC OS X and there it also finds me a 802GB disk with 0 GB of free.

I think it corresponds to the size of the data I put on this disk but can not read the content.

I hope I have answered your questions

Thank you for you precious help

The format for DNS drives is EXT3. Make sure your OS has the drivers supported for this type of format.

What is the Mfr and model if the drives installed?

Please review this:
http://forums.dlink.com/index.php?topic=50772.0

[ivan]

A little more information please.

1) have you checked the power supply for the NAS, both for voltage and current under load?
2) was the disk reading or writing data when the power LED began blinking?

Since you are using a seagate drive download the seatools version for your operating system, install it and then use the tools to check the drive mounted in the USB adapter.

If the answer to question 2) is yes then what you have sounds like a power supply failure of some sort that has corrupted the data format or layout on the disk. Assuming the disk isn't physically damaged, the heads may have touched the platter surface, it might be possible to recover some ot all of your data depending on the results of the test of the seatools.

Let us know what the results of the test are and the state of the power supply.  Without that hard information I can't advise/help you any further.
 

[csartoo]

The power supply is compliant.
The NAS has the power diode that blinks indefinitely even without a hard drive what a priori is not normal and suggests that the NAS is out of order.
The disc never starts.
I have not tested seatools because it is advisable to back up its data before starting the analysis because can make the data inaccessible.
The data being important for me I have requested a quote by a specialized company that works in clean room.
2 NAS bought the same day that break down at the same time it's shady. I'm not ready I think to re-trust Dlink.
Anyway thanks for your help

[FurryNutz]

I recommend that you phone contact your regional D-Link support office and ask for help and information regarding this. We find that phone contact has better immediate results over using email.
Let us know how it goes please.

[ivan]

The power supply is compliant.
The NAS has the power diode that blinks indefinitely even without a hard drive what a priori is not normal and suggests that the NAS is out of order.

You have confirmed that the power supply is in fact supplying 12v @ 3A under load (this requires more than just a multimeter)?  These small power supplies are problematic id there are voltage spikes on the mains supply.  It is also possible that a voltage spike can be fed through to the NAS box itself which causes damage (all the NAS boxes we have and supply to our clients are connected to filtered UPSs) 

The data being important for me I have requested a quote by a specialized company that works in clean room.

If the data is that important you need a good backup strategy in place.  A storage device and only one copy of the data is not a backup, you need at least three copies of the data as well as the original to have a secure backup (RAID storage is NOT a backup).

[csartoo]

If the data is that important you need a good backup strategy in place.  A storage device and only one copy of the data is not a backup, you need at least three copies of the data as well as the original to have a secure backup (RAID storage is NOT a backup).

Hi,

Yes indeed it was a bad strategy. On paper it seemed to us sufficient for a particular person because the backup of NAS to NAS separated by hundreds of kilometers avoided the risk of fire and theft. It was wrongly thought that 2 nas and their records could not break down in the same hour. While waiting to think of another solution using a NAS, I returned to a simpler method for me: cloud + External Disk + DVD.
The data up to this day seemed important but not vital but when it contains the only photos of a loved one disappeared suddenly we reconsider the importance of this data.
Fortunately for me, I had inserted these photos in a personal blog, in very average quality but it is always that.
The multiplication of backup media and their places of storage is certainly the best solution but it is often thought too late for a single individual.

I recommend that you phone contact your regional D-Link support office and ask for help and information regarding this. We find that phone contact has better immediate results over using email.
Let us know how it goes please.

I will indeed try to call them, I had made an email, but no longer under warranty I do not know if they will reply.
I would just like to have two pieces of information:
- Confirm that the disk formatted as "standard" in the NAS should be readable in Linux as Ext3 format. Because if this is the case, it confirms my request for recovery by a specialized company.
- Have an idea of what could happen to destroy 2 NAS and alter 2 disks remote at the same time yet distant hundreds of kilometers while the synchronization of the 2 NAS is only a week apart.

[ivan]

Sorry for the delay in replying.

- Confirm that the disk formatted as "standard" in the NAS should be readable in Linux as Ext3 format. Because if this is the case, it confirms my request for recovery by a specialized company.

Yes, a STANDARD disk (and either of RAID 1 disks) can be taken from the NAS and, assuming it is in good condition, can be read by a Linux Operating System (depending on the choice when it was formatted in the NAS it may be Ext3 or 4)

- Have an idea of what could happen to destroy 2 NAS and alter 2 disks remote at the same time yet distant hundreds of kilometers while the synchronization of the 2 NAS is only a week apart.

Without being able to physically inspect the NAS and disks I can't give a definitive answer.  I can say that I have seen some off site backups that were useless because the data they were receiving was garbage and no one checked until after everything had been overwritten (this is why we always have someone on duty to check the data from our clients during the nightly backups).